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diff --git a/clang-r353983/include/clang/AST/ExprOpenMP.h b/clang-r353983/include/clang/AST/ExprOpenMP.h
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+//===--- ExprOpenMP.h - Classes for representing expressions ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines the Expr interface and subclasses.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_AST_EXPROPENMP_H
+#define LLVM_CLANG_AST_EXPROPENMP_H
+
+#include "clang/AST/Expr.h"
+
+namespace clang {
+/// OpenMP 4.0 [2.4, Array Sections].
+/// To specify an array section in an OpenMP construct, array subscript
+/// expressions are extended with the following syntax:
+/// \code
+/// [ lower-bound : length ]
+/// [ lower-bound : ]
+/// [ : length ]
+/// [ : ]
+/// \endcode
+/// The array section must be a subset of the original array.
+/// Array sections are allowed on multidimensional arrays. Base language array
+/// subscript expressions can be used to specify length-one dimensions of
+/// multidimensional array sections.
+/// The lower-bound and length are integral type expressions. When evaluated
+/// they represent a set of integer values as follows:
+/// \code
+/// { lower-bound, lower-bound + 1, lower-bound + 2,... , lower-bound + length -
+/// 1 }
+/// \endcode
+/// The lower-bound and length must evaluate to non-negative integers.
+/// When the size of the array dimension is not known, the length must be
+/// specified explicitly.
+/// When the length is absent, it defaults to the size of the array dimension
+/// minus the lower-bound.
+/// When the lower-bound is absent it defaults to 0.
+class OMPArraySectionExpr : public Expr {
+  enum { BASE, LOWER_BOUND, LENGTH, END_EXPR };
+  Stmt *SubExprs[END_EXPR];
+  SourceLocation ColonLoc;
+  SourceLocation RBracketLoc;
+
+public:
+  OMPArraySectionExpr(Expr *Base, Expr *LowerBound, Expr *Length, QualType Type,
+                      ExprValueKind VK, ExprObjectKind OK,
+                      SourceLocation ColonLoc, SourceLocation RBracketLoc)
+      : Expr(
+            OMPArraySectionExprClass, Type, VK, OK,
+            Base->isTypeDependent() ||
+                (LowerBound && LowerBound->isTypeDependent()) ||
+                (Length && Length->isTypeDependent()),
+            Base->isValueDependent() ||
+                (LowerBound && LowerBound->isValueDependent()) ||
+                (Length && Length->isValueDependent()),
+            Base->isInstantiationDependent() ||
+                (LowerBound && LowerBound->isInstantiationDependent()) ||
+                (Length && Length->isInstantiationDependent()),
+            Base->containsUnexpandedParameterPack() ||
+                (LowerBound && LowerBound->containsUnexpandedParameterPack()) ||
+                (Length && Length->containsUnexpandedParameterPack())),
+        ColonLoc(ColonLoc), RBracketLoc(RBracketLoc) {
+    SubExprs[BASE] = Base;
+    SubExprs[LOWER_BOUND] = LowerBound;
+    SubExprs[LENGTH] = Length;
+  }
+
+  /// Create an empty array section expression.
+  explicit OMPArraySectionExpr(EmptyShell Shell)
+      : Expr(OMPArraySectionExprClass, Shell) {}
+
+  /// An array section can be written only as Base[LowerBound:Length].
+
+  /// Get base of the array section.
+  Expr *getBase() { return cast<Expr>(SubExprs[BASE]); }
+  const Expr *getBase() const { return cast<Expr>(SubExprs[BASE]); }
+  /// Set base of the array section.
+  void setBase(Expr *E) { SubExprs[BASE] = E; }
+
+  /// Return original type of the base expression for array section.
+  static QualType getBaseOriginalType(const Expr *Base);
+
+  /// Get lower bound of array section.
+  Expr *getLowerBound() { return cast_or_null<Expr>(SubExprs[LOWER_BOUND]); }
+  const Expr *getLowerBound() const {
+    return cast_or_null<Expr>(SubExprs[LOWER_BOUND]);
+  }
+  /// Set lower bound of the array section.
+  void setLowerBound(Expr *E) { SubExprs[LOWER_BOUND] = E; }
+
+  /// Get length of array section.
+  Expr *getLength() { return cast_or_null<Expr>(SubExprs[LENGTH]); }
+  const Expr *getLength() const { return cast_or_null<Expr>(SubExprs[LENGTH]); }
+  /// Set length of the array section.
+  void setLength(Expr *E) { SubExprs[LENGTH] = E; }
+
+  SourceLocation getBeginLoc() const LLVM_READONLY {
+    return getBase()->getBeginLoc();
+  }
+  SourceLocation getEndLoc() const LLVM_READONLY { return RBracketLoc; }
+
+  SourceLocation getColonLoc() const { return ColonLoc; }
+  void setColonLoc(SourceLocation L) { ColonLoc = L; }
+
+  SourceLocation getRBracketLoc() const { return RBracketLoc; }
+  void setRBracketLoc(SourceLocation L) { RBracketLoc = L; }
+
+  SourceLocation getExprLoc() const LLVM_READONLY {
+    return getBase()->getExprLoc();
+  }
+
+  static bool classof(const Stmt *T) {
+    return T->getStmtClass() == OMPArraySectionExprClass;
+  }
+
+  child_range children() {
+    return child_range(&SubExprs[BASE], &SubExprs[END_EXPR]);
+  }
+};
+} // end namespace clang
+
+#endif